ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYAL..............................JDIM360 (Ver 1.5 21 Nov 2005) - 1100000/00878777EUROPEAN PATENT APPLICATIONA319981223EP98303591.619980507enenen854279 19970509US19981223199852199811181998476 6G 06T 5/40 AdeVerfahren zur Verbesserung von Bildern mit vermindertem FarbsatzenMethod for enhancement of reduced color set imagesfrProcédé d'amélioration d'images à assortiment de couleurs réduit1XEROX CORPORATION00219783RSJ05578EPXerox SquareRochester, New York 14644USEschbach, Reiner812 Westwood TrailWebster NY 14580USFuss, William A.777 Latta RoadRochester NY 14612USSkone James, Robert Edmund00050281GILL JENNINGS & EVERY Broadgate House 7 Eldon StreetLondon EC2M 7LHGBATBECHCYDEDKESFIFRGBGRIEITLILUMCNLPTSEALLTLVMKROSI19981223199852

A method of improving the range of color images which can be processed by multiple enhancement processing elements, and improving image quality of limited color set images. The inventive method determines (107) the number of colors that form an image, and with that information, adds a control function to one or more enhancement processors (112,122,132), which, based on a number of colors, increases and/or decreases the effect of the enhancement function. In doing so, the range of color images which can be handled is increased.